mitt romney expected to appear here just moments ago, and beside him, paul ryan celebrating romney's debate last night. tonight, new questions about whether or not romney is trying to modify his message a bit with that much larger audience. starting onto a different denver stage today, mitt romney, his sons leading the applause, reveling in their father's debate performance. >> the american people last nighwere given a choice. >> reporter: how did romney get ahead last night? by aggressively taking on the president, part of the romneys stra. >>>. moments like this one, as the two debated the debt. >> but in my view, the president should have grabbed it, if he wanted to make some adjustments to it, take it, go to congress, fight for it. >> that's what we've done. made some adjustments and we're putting it forward to congress right now. >> but you've been president four years. >> reporter: on that stage in front of a much broader audience than usual, romney doing something else. appearing more moderate. on cutting taxes, even for the rich, the tone, different. during the primary -- >>